A Comprehensive Study of LFP-Based Positive Electrodes: Process Parameters' Influence on the Electrochemical Properties

• Tipo: Artigo em Revista Científica Internacional
• Data: 2025

Autores

Beatriz Arouca Maia (Autor) Outra; Natália Magalhães (Autor) Outra; Eunice Cunha (Autor) Outra; Nuno Correia (Autor) Outra; Maria Helena Braga (Autor) FEUP; Raquel M. Santos (Autor) Outra

Revista

A Revista está pendente de validação pelos Serviços Administrativos.

Título: BATTERIES-BASEL

Nº de Série 93 Vol. 11 Nº 3

Página Final: 93

Indexação

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Outras Informações

ID Authenticus: P-018-BH3

DOI: 10.3390/batteries11030093

Abstract (EN): This study explores the preparation of lithium iron phosphate (LFP) electrodes for lithium-ion batteries (LIBs), focusing on electrode loadings, dispersion techniques, and drying methods. Using a three-roll mill for LFP slurry dispersion, good electrochemical properties were achieved with loadings of 5-8 mgcm-2 (0.8-1.2 mAhcm-2 areal capacity). Adding polyvinylidene fluoride (PVDF) during the final milling stage reduced performance due to premature solidification in-between rolls. Vacuum-free drying improved ionic conductivity, stability against lithium metal, and discharge capacity, whereas vacuum-dried samples exhibited higher initial resistance and lower capacity retention. These findings highlight critical parameters for enhancing LFP electrode performance, paving the way for high-performance, and sustainable energy-storage solutions.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 17